VIII. Acoustics. IX. Optics, formal and physical. X. Thermotics and atmology. XI. Electricity. XII. Magnetism. XIII. Galvanism, or Voltaic electricity. XIV. Chemistry. XV. Mineralogy. XVI. Systematic botany and zoology. XVII. Physiology and comparative anatomy. XVIII. Geology. Additions to the 3d edD. Appleton, 1858 - Science |
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Page 25
... further . In the same manner the voice makes its motion in circles . But in water the circle moves breadthways upon a level plain ; the voice proceeds in breadth , and also successively ascends in height . " 3 Both the comparison , and ...
... further . In the same manner the voice makes its motion in circles . But in water the circle moves breadthways upon a level plain ; the voice proceeds in breadth , and also successively ascends in height . " 3 Both the comparison , and ...
Page 28
... further examination of the quantitative circumstances of this oscillatory motion was an obvious problem ; and especially after oscillations , though of another kind ( those of a pendu- lous body ) , had attracted attention , as they had ...
... further examination of the quantitative circumstances of this oscillatory motion was an obvious problem ; and especially after oscillations , though of another kind ( those of a pendu- lous body ) , had attracted attention , as they had ...
Page 31
... further , that it was almost evident to a mathematician , even before the general solution had ap- peared , that the dependence of the time of vibration on the length and tension , would be the same in the general case as in the Taylo ...
... further , that it was almost evident to a mathematician , even before the general solution had ap- peared , that the dependence of the time of vibration on the length and tension , would be the same in the general case as in the Taylo ...
Page 32
... further history of the pro- blem of vibrating strings , till we have to consider it in connexion with new experimental facts . CHAPTER III . PROBLEM OF THE PROPAGATION OF SOUND . WE have seen that the ancient philosophers , for the most ...
... further history of the pro- blem of vibrating strings , till we have to consider it in connexion with new experimental facts . CHAPTER III . PROBLEM OF THE PROPAGATION OF SOUND . WE have seen that the ancient philosophers , for the most ...
Page 37
... further , that the longer string divides itself into two , or into three equal parts , separated by nodes , or points of rest ; this they proved by hanging bits of paper on different parts of the string . The discovery so modified was ...
... further , that the longer string divides itself into two , or into three equal parts , separated by nodes , or points of rest ; this they proved by hanging bits of paper on different parts of the string . The discovery so modified was ...
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Common terms and phrases
acid already analogy angles animals appears applied Aristotle asserted Astronomy attempts attraction bodies botanists botany causes character chemical chemistry circular polarization classification colors conceived connexion considered crystalline crystallography crystals Cuvier diamagnetic Dicotyledonous discovery distinct doctrine double refraction earth effect elasticity electricity established experiments explain facts Faraday fluid force fossil Fresnel geologists Geology heat History of Optics hypothesis important induction kind knowledge labors latent heat laws light Linnæus Lyell magnetic manner mathematical mechanical Memoir metals method Mineralogy minerals mode motion names natural Newton notice observed opinion optical organic particles period phenomena Phil philosophers phlogiston physical physiological plants polarization poles principles produced progress published rays reference researches rhombohedron says Sect sound speak species speculations strata substances supposed surface temperature term Theophrastus Thermotics tion Trans truth undulations undulatory undulatory theory vapor various vertebrate vibrations viviparous voltaic
Popular passages
Page 585 - Each cast at the other, as when two black clouds, With heaven's artillery fraught, come rattling on Over the Caspian ; then stand front to front, Hovering a space, till winds the signal blow To join their dark encounter in mid air...
Page 299 - I at first laid down, namely, that the chemical power of a current of electricity is in direct proportion to the absolute quantity of electricity which passes (377, 783).
Page 89 - And in like manner, when a ray of light falls upon the surface of any pellucid body, and is there refracted or reflected, may not waves of vibrations, or tremors, be thereby excited in the refracting or reflecting medium at the point of incidence...
Page 251 - An account of several new Instruments and Processes for determining the Constants of a Voltaic Circuit.
Page 573 - The earth obeyed, and straight Opening her fertile womb teemed at a birth Innumerous living creatures, perfect forms, Limbed and full grown: out of the ground up rose As from his lair the wild beast where he wons In" forest wild, in thicket, brake, or den...
Page 56 - ... that the ratio of the sines of the angles of incidence and refraction is constant for refraction in the same medium, was effected by Snell and Descartes.
Page 449 - I had with him, which was but a little while before he died, what were the things which induced him to think of a circulation of the blood ? he answered me, that when he took notice that the valves in the veins of so many parts of the body were so placed that they gave free passage to the blood towards the heart, but opposed the passage of the venal blood the contrary way...
Page 573 - The tawny lion, pawing to get free His hinder parts, then springs, as broke from bonds, And rampant shakes his brinded mane...
Page 296 - The facts recorded in that lecture Faraday regards as of the utmost value. But ' the mode of action by which the effects take place is stated very generally ; so generally, indeed, that probably a dozen precise schemes of electro-chemical action might be drawn up, differing essentially from each other, yet all agreeing with the statement there given.
Page 559 - With terror through the dark aerial hall. Some say, he bid his angels turn askance The poles of earth, twice ten degrees and more, From the'sun's axle ; they with labour push'd Oblique the centric globe...